Isn't the most common criticism thrown at Crossfit (beside the cult mentality thing) that their training/certification process for their instructors is woefully amateurish compared to other, typically more responsible, programs?
Or how they do "pullups": https://youtu.be/XQvSmqChm6M?t=1m40s
Wow, that is scary. Considering that these are supposed to be their top performers (and in a promoted event no less), that is quite a different level of bad than just having some instructors that may not be up to snuff. It's like they purposefully and actively promote bad form and health-damaging training. So the opposite of 'fit' then.